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What time to wake up for an 8 AM start
If you need to be at work by 8 AM, here's when to set your alarm, based on your commute and how long you take to get ready.
Wake-up times by commute length
| Commute | Ready in 30 min | Ready in 45 min | Ready in 60 min |
|---|---|---|---|
| 15 min | 7:05 AM | 6:50 AM | 6:35 AM |
| 30 min | 6:50 AM | 6:35 AM | 6:20 AM |
| 45 min | 6:35 AM | 6:20 AM | 6:05 AM |
| 60 min | 6:20 AM | 6:05 AM | 5:50 AM |
How much traffic buffer for a 8 AM start?
Arriving in this window puts most of your drive inside the morning rush, when the same commute can swing by 10–20 minutes or more from one day to the next. Use a 15–20 minute buffer, or let a traffic-aware alarm check for you.
Driving vs transit vs walking
- Driving: the most variable. Add the buffer above, and more in rain or snow.
- Transit: plan around the timetable rather than a buffer. Aim for the service that gets you in 5–10 minutes early, and count the walk to the stop.
- Walking or cycling: very predictable, so a 5-minute buffer is plenty.
When to go to bed
For a 6:35 AM alarm, fall asleep around 9:20 PM (9 h) · 10:50 PM (7.5 h) · 12:20 AM (6 h). These line up with roughly 90-minute sleep cycles plus about 15 minutes to drift off; 7.5 hours suits most adults.
Other start times
6 AM · 6:30 AM · 7 AM · 7:30 AM · 8:30 AM · 9 AM · 9:30 AM · 10 AM
Frequently asked questions
What time should I wake up to be at work by 8 AM?
Subtract your commute, a traffic buffer and your get-ready time from 8 AM. With a 30-minute commute, 10-minute buffer and 45 minutes to get ready, wake up at 6:35 AM.
What time should I leave for a 8 AM start?
Leave your commute time plus a buffer before 8 AM. For a 30-minute drive with a 10-minute buffer, leave at 7:20 AM.